HOUSTON— A team of Scientists from "World Weather Attribution" believe atmospheric changes caused the Harvey rain to be three times more likely to happen and 15 percent more intense.
"Climate change did contribute at some level, to what happened with Hurricane Harvey to Houston, I think it's a combination that we have more water vapor content, more moisture in the air, and it stalling," said Aaron Studwell of Wilkens Weather.
Harvey pounded rain on the city for four days leaving many Houstonians homeless.
"If this was a normal hurricane that went to shore and dissipated, we're not getting 50 inches of rain, it went, it stalled and fed it all in and it was like nothing Houston's ever seen before," said Studwell.
As our world continues to warm by climate change our air temperature will continue to warm and hold more moisture which causes more water vapor in the air that turns into rain.
Other changes like upper level winds and sea level rise also contribute to increased flooding.